Sepam 2000 D22 - D32 Merlin Gerinmt.schneider-electric.be/OP_MAIN/Sepam/PCRED301042UK.pdf · Get more with the world’s Power & Control specialist Transformer differential protection

Get more with the world’s Power & Control specialist

Transformer differential protection

Sepam 2000 D22 - D32Merlin Gerin

Installation and user’s manual

1Schneider Electric

Contents

Installation 1/1

Use - Commissionning 2/1

General characteristics 3/1

Testing 4/1

1/1Schneider Electric

Installation Contents

Use conditions 1/2Installation of Sepam 2000 1/2Handling, transport and storage 1/2Environment of the installed Sepam 2000 1/2

Identification of Sepam 2000 1/3

Equipment identification 1/4Accessories supplied with Sepam 1/4Optional accessories 1/5Communication accessories 1/5

Assembly and wiring 1/6Dimensions and drilling 1/6Assembly 1/6Sepam 2000 components 1/7Connections 1/7Terminal identification principle 1/7

Use and connection of current inputs to CTs 1/81 A or 5 A CT connection diagram 1/8Selection of operating modes (microswitches) 1/8CCA 660 or CCA 650 connector 1/9

Use and connection of CSH 30 interposing ring CT 1/10CSH interposing ring CT 1/10Assembly 1/10Wiring 1/10Connection to the 1 A secondary circuit 1/11Connection to the 5 A secondary circuit 1/11Selection of operating modes (microswitches) 1/11

Connection of power supply and logic inputs andoutputs 1/12Connection of power supply and earth 1/12Connection of logic inputs and outputs 1/12

Connection of the Jbus/Modbus communicationcoupler 1/13

Replacement of Sepam 2000 D01 andSepam 2000 D22 1/14Assembly 1/14Sepam 2000 D22 settings 1/14Communication 1/14

1/2 Schneider Electric

Installation Use conditions

Installation of Sepam 2000Each Sepam 2000 comes in a single package whichcontains:b Sepam 2000b mounting accessoriesb connection accessories (connectors).

The other optional accessories come in a separatepackage.We recommend that you follow the instructions given inthis document for quick, correct installation of yourSepam 2000:b equipment identificationb assemblyb connection of current and voltage inputs, probesb microswitch settingb connection of power supply and earthb checking prior to commissioning.

Handling, transport and storage

E61

465

Environment of the installed Sepam 2000Operation in a damp environmentThe temperature/relative humidity factors must compatible with the unit’senvironmental withstand characteristics.If the use conditions are outside the normal zone, commissioning arrangementsshould be made, such as air conditioning of the premises.

Sepam 2000 in its original packaging

Transport:Sepam 2000 may be shipped to any destination withouttaking any additional precautions by all usual means oftransport.

Handling:Sepam 2000 may be handled without any particularcare and can even withstand being dropped by aperson handling it (person standing on floor).

Storage:Sepam 2000 may be stored in closed premises forseveral years. Periodic, yearly checking of theenvironment and the packaging condition isrecommended.

Sepam 2000 installed in a cubicle

Transport:Sepam 2000 may be transported by all usual means oftransport in the customary conditions used for cubicles.Storage conditions should be taken into considerationfor a long period of transport.

Handling:Should the Sepam 2000 fall out of a cubicle, check itscondition by visual inspection and energizing. If there isany doubt, return the Sepam 2000 for checking in thefactory.

Storage:Keep the cubicle protection packing for as long aspossible. Sepam 2000, like all electronic units, shouldnot be stored in a damp environment for more than amonth. Sepam 2000 should be energized as quickly aspossible. If this is not possible, the cubicle reheatingsystem should be activated.

Operation in a polluted atmosphereSepam 2000 is designed to be used in a clean industrial environment as defined byIEC 60654-4 class 1. A contaminated industrial atmosphere components(such as the presence of chlorine, hydrofluoric acid, sulfur, solvents…) may causecorrosion of the electronic components, in which case environmental controlarrangements should be made (such as closed, pressurized premises withfiltered air,…) for commissioning.

T (°C)

55

40

35 65 93 95humidity (%)

normal use zone


Installation Identification of Sepam 2000

Each Sepam is identified by a 14-character reference which describes its hardwareand functional composition in accordance with the chart below.

Series Model Type Variant Communication Numberof ESTORboards

Operatinglanguage

Currentsensor

Auxiliarysupply

Operatingtemperature

S36 CR D=differential 22 = 2 ends X = without 0 = 0 F = French T = CT A = 24Vdc N = -5/55 °C

CC 32 = 3 ends J = Jbus/Modbus 1 = 1 A = English B = 48/125Vdc2 = 2 I = Italian C = 220Vdc3 = 3 E = Spanish

There are five labels for identifying Sepam:b two labels on the right side panel which give theproduct’s hardware features (1)

b a label on the front of the cartridge which gives thefunctional features (2)

b a label on the left side of the cartridge which includesits references (3)

b a label on the right side of the cartridge which may beused to note the references of a non-standard controllogic scheme (4).

Example of Sepam references:S36 Sepam 2036CR TypeD Differential22 2 windingsX no communication1 1 ESTOR boardsF FrenchT CTB 48 - 125 VN -5/+55 °C

E56

479

model

equipment reference(Sepam, model andapplication)

serial number

E56

480 equipment upgrading label

spaces reserved for equipmentchangese.g. addition of an ESTOR board

spaces reserved for after-salesservicing operationse.g. replacement of an ECMD board

(1) Example of label on right side panel board name servicing dates

9837056

S35/S36 CR *** J1* TBN

origin : FRANCE

SEPAM 2000 S36 CR D22 J 1 F TBN 9837056

2 9850

ECMD 18/10/98

E56

481

E42

463

(4) Label on the right sideof the cartridge.

Identificationof a non-standardprogram logic scheme

(2) Example of label on the front of the cartridge.

E56

482

(3) Example of a label on the left side of the cartridge.

S36 D22 F

6 CRD22FA961 T F A

6: Sepam S36CR: modelD22: typeF: FrenchA: revision index

S36: standard SepamD22: typeF: French

Sepammodel

application typecontrol logic n°

Date VersionSepam réf. :

Proj réf. :

Drwg n° :

Cubicle ID :

03143764FA-B0-01-9740208


Installation Equipment identification

Accessories supplied with SepamEach Sepam 2000 comes with the following accessories:

E40

485

CCA 660 connector for connection of 1 A or 5 A CT:b for 4 mm eye lugsb for max. 6 mm2 wire (AWG 10).

E61

184

CCA 604 connector4 points connector.Connection of power supply:b screw terminalsb 0.6 to 2.5 mm2 wire (AWG 20 to AWG 14).

E40

483

CCA 606 connector6 points connector.Connection of a core balance TC:b screw terminalsb 0.6 to 2.5 mm2 wire (AWG 20 to AWG 14).

E61

183

CCA 621 connector21 points connector.Connection of logic inputs/outputs:b screw terminalsb 0.6 to 2.5 mm2 wire (AWG 20 to AWG 14).

E40

487

2 Sepam 2000 mounting lugs


Installation Equipment identificationE

6174

5

Optional accessoriesTSM 2001 pocket terminalUsed to mount Sepam 2000 settings.It does not have a battery since it is supplied with power by Sepam 2000.

MT

1058

3

SFT 2801 / SFT 2821 kitb The SFT 2801 software tool installed on a PC microcomputer may be used insteadof the TSM 2001 pocket terminal.b The SFT 2821 software tool installed on a PC may be used to:v prepare a protection setting file and transfer it to Sepam 2000 via the pocketterminal connectionv transfer to a PC, via the pocket terminal connection, all the Sepam 2000 protectionsettings and store them in a file.

These software tools are delivered together. They comprise:b three 3"1/2 diskettesb an instruction manualb a connection kit (ACE 900 interface + cord).

In the rest of the document, the term "pocket terminal" refers to both the TSM 2001pocket terminal and the SFT 2801 kit.

ACE 900 adapter to be connected to the pocket terminal inlet.

E61

463

AMT 819 plateUsed to mount Sepam 2000 on a 19" rack.

190.5265.5

459

202

11.5

429

482

26.5

37.5 31.5

E61

367

E61

098

AMT 820 shieldUsed to block off the space between Sepam and the edge of the AMT 819 plate.

Communication accessoriesCCA 602 cable3 m long cable with connectors supplied Sepam 2000 equiped with thecommunication option.

Refer to the "RS485 communication network connection guide".

87


Installation Assembly and wiring

Dimensions and drillingSepam 2000 is flush mounted in a rectangular cut-out.Maximum thickness of mounting: 3 mm

E51

9789

Drilling diagram

Assemblyb Insert Sepam 2000 through the front of the cut-out.Slide it into the cut-out until the front of Sepam 2000 isin contact with the mounting plate. The 2 notches (1) atthe base of the Sepam 2000 case allow it to hold by itsown weight.b Position the 2 lugs (2) in the holes on the top ofSepam 2000.Tighten the threaded studs of the lug.b Make sure not to block the ventilation openings onthe top and bottom of Sepam 2000.Leave a space of at least 5 cm above and belowSepam 2000.

E62

000

338

202201

20 300

222

mounting lugs (x 2)

352 332

(2)(2)

(1)

E61

731


Installation Assembly and wiring

Sepam 2000 components Slot numbers of Sepam 2000 boards

ConnectionsThe Sepam 2000 connections are made on theremovable connectors located on the rear of the device.All the connectors are screw-lockable.

Wiring of screw connectors:b Recommended wire fittings:v Telemecanique DZ5CE0155 for 1.5 mm2

v DZ5CE0253 for 2.5 mm2.Stripped length with fitting: 17 mm.

b Without fitting:v stripped length: 10 to 12 mmv maximum 2 wires per terminal.The 21-pin connectors must be connected correctly byhand before being locked by the 2 screws (top/bottom).

E61

973

Terminal identification principleAll the Sepam 2000 connection terminals are locatedon the rear of the device.The Sepam 2000 boards are fitted into the rear slotsnumbered 1 to 8.The connections are identified by adding differentmarkings:b slot (1 to 8)b connector A or Bb terminal (1 to 21).Example: 5 A16slot n°5, connector A, terminal 16.

Each connector is used for a specific functional unitidentified in the top right-hand corner according to thefunction:b CE40: auxiliary supply and communication optionb ECMD: current sensor (CT) interfaceb ESB: control interfaceb ESTOR: control interface.

E48

029

(1) Sepam 2000 D32 only(2) In option for D32 application only

Slot

8 7 6 5 4 3 2 1

S36 CR ESTOR ESB - ECMD ECMD CE40S36 CC ESTOR ESTOR ESTOR ESB ECMD ECMD ECMD CE40

CURRENTINPUTSWINDING 1


ESTOR ESB CE40

+

B

(communicationoption)

1

POWER SUPPLY

234

AAA

5

INPUTS ANDOUTPUTSESB

6

INPUTS ANDOUTPUTSESTOR1

78

123456789101112131415161718192021

123456789101112131415161718192021

1234

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

ECMD

123456

A

SW2

B

SW1

B

ECMD

123456

A

SW2

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

123456

A

SW2

ECMD


INPUTS ANDOUTPOUTSESTOR2

INPUTS ANDOUPUTSESTOR3

(2) (1)(1)


Installation Use and connection ofcurrent inputs to CTs

1 A or 5 A CT connection diagramThe current transformer (1 A or 5 A) secondary circuitsare connected to the CCA 660 connector on the ECMDmodule.The connector contains 3 core balance CT primary-throught adapters to ensure impedance matching andisolation between the 1 A or 5 A circuits andSepam 2000.The connector may be disconnected with the power onsince disconnection does not open the CT's secondarycircuit.

E48

029


E56

490

Sepam 2000 current inputs

Selection of operating modes(microswitches)Sepam 2000 has several possible operating modes.The operating mode is selected via microswitches onthe rear of the device. They must be set before Sepam2000 is put into service.

The microswitches must be switched while theSepam 2000 is de-energized.

They are hidden by the CCA connector once it hasbeen installed.

Please note: Sepam 2036 models CR and CC haveseveral inputs for connecting CTs. Remember to set themicroswitches for all the inputs.

E61

730



ESTOR ESB CE40

+

B


1

POWER SUPPLY

234

AAA

5


6


78

123456789101112131415161718192021

123456789101112131415161718192021

1234

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

ECMD

123456

A

SW2

B

SW1

B

ECMD

123456

A

SW2

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

123456

A

SW2

ECMD




(2) (1)(1)

L1

L2

L3

B4B1

B5B2

B6B3

DPC

CCA 660

ECM1 32

SW1

SW2

5 A CT

SW2

1 A CT

SW1

SW2

SW1

For use on the 5 Asecondary circuit.

For use on the 1 Asecondary circuit.

For measuringneutral point current.

Microswitch setting


Installation Use and connection ofcurrent inputs to CTs

CCA 660 or CCA 650 connectorb Open the 2 side shields for access to the connectionterminals. The shields may be removed, if necessary, tofacilitate wiring. If removed, replace them after wiring.b Remove the bridging strap if necessary.The strap links teminals 1, 2 and 3.b Connect the wires using 4 mm eye lugs.The connector accommodates wires with crosssections of 1.5 to 6 mm2 (AWG 16 to AWG 10).b Close the side shields.

E40

488

b Plug the connector into the 9-point inlet on the rear ofthe device. Item B on the ECMD module.

E61

187

b Tighten the CT connector fastening screws onthe rear of Sepam 2000.

E61

186


Installation Use and connection ofCSH 30 interposing ring CT

CSH interposing ring CTThe CSH 30 interposing ring CT should be used whenresidual current is measured by a current transformerwith a secondary circuit (1 A or 5 A).It acts as an adapter between the CT and theSepam 2000 residual current input.It should be connected to the CT input of theSepam 2000 and installed near the correspondingSepam input (max. 2 m).

Characteristicsb inner diameter: 30 mmb accuracy: ± 5%b transformer ratio: 1/470b maximum permissible current: 20 kA-1 secondb operating temperature: - 25°C to + 70°Cb storage temperature: - 40°C to + 85°Cb maximum metering current: 10 Ino.

E61

461

Dimensions (mm) Weight (kg)A B C D E F30 31 60 53 82 50 0.12

AssemblyThe CSH 30 interposing ring CT is mounted on asymmetrical DIN rail. It may also be mounted on a platethrough the mounting holes provided on its base.

WiringThe cable must be inserted into the CSH 30 interposingring CT in the right direction in order for the directionalearth fault protection to operate correctly: the cablecoming from S2 of the CT must be inserted through theP2 side of the CSH 30 core balance CT.The secondary winding of the CSH 30 is connected tothe CCA 606 6-pin connector.Cable to be used:b sheathed, shielded cableb min. cable cross-section 0.93 mm2 (AWG 18)(max. 2.5 mm2)b resistance per unit length < 100 mΩ/mb min. dielectric strength: 1000 V.Connect the CSH 30 interposing ring CT connectioncable shield in the shortest manner possible(2 m maximum) to the Sepam 2000 6-pin connector.Flatten the cable against the metal frames of thecubicle. The connection cable shielding is grounded inSepam 2000. Do not ground the cable by any othermeans.

E44

717

Horizontal mounting on DIN rail.

E40

468

Vertical mounting on DIN rail.


Installation Use and connection ofCSH 30 interposing ring CT

Connection to the 1 A secondary circuitb Plug into the CCA 606 connector.b Wind the transformer secondary wire around the CSH 30 interposingring CT 5 times.

Connection to the 5 A secondary circuitb Plug into the CCA 606 connector.b Wind the transformer secondary wire once around the CSH 30 core balance CT.

Selection of operating modes (microswitches)The SW1 micro-switches are found on the rear of the device. They must be set beforeSepam 2000 is put into service.They should be switched while the Sepam 2000 is de-energized.The microswitches are hidden by the CCA 660 connector once it has been installed.

Please note:Sepam 2036 models CR or CC have some inputs for connecting CTs. Remember toset the micro-switches of all inputs.

E61

733

E62

001

E61

732

E52

002

SW2

SW1 For neutral point current measurement.

DPC

5 turns

CSH 30interposing

A5A6

A4A3A2A1

ECMD

calib. 30 A

DPC

calib. 2 Acb CT

REF

1 A CT

N

1 turn

CSH 30interposing

A5A6

A4A3A2A1

ECMD

calib. 30 A

DPC

calib. 2 Acb CT

REF

5 A CT

N


Installation Connection of power supplyand logic inputs and outputs

Connection of power supply and earthThe Sepam 2000 power supply is connected to theCCA 604 4-point terminal block on the CE40 modulesituated on the rear of the device.The power supply input is protected against accidentalpolarity inversion.

Safety:The Sepam 2000 chassis must be earthedvia the grounding screw situated on theright side panel (rear view).

Use a braid or cable fitted with a 4 mm eye lug. The eyelug fastening screw is already mounted on Sepam 2000when it is delivered.(Should this screw be lost, never replace it by a screwlonger than 8 mm).

E61

144

Connection of logic inputs and outputsThe logical data are connected to the CCA 621connector on the ESB and ESTOR modules.Check that the voltage applied to the inputs iscompatible with the permissible voltage indicated by adot on the subassembly.

Cabling should be done in accordance with the diagramgiven in the technical manual for your Sepam(Sepam 2000 D22 or Sepam 2000 D32).

E48

029


SONDE ESTOR ESTOR ESB SONDE3U/V0

SW1

A

B

B

ECM CE40

123456

+

B


1

POWER SUPPLY

2

CURRENTINPUT

3

PROBES

4

VOLTAGEINPUT

AAAAAAA

5

INPUTS ANDOUTPUTS

6

INPUTS ANDOUTPUTS

7

INPUTS ANDOUTPUTS

8

PROBES

123456789101112131415161718192021

123456789101112131415161718192021

123456789101112131415161718192021

123456789101112131415161718192021

12345678

123456789101112131415161718192021

1234

SW1

SW2



ESTOR ESB CE40

+

B


1

POWER SUPPLY

234

AAA

5


6


78

123456789101112131415161718192021

123456789101112131415161718192021

1234

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

ECMD

123456

A

SW2

B

SW1

B

ECMD

123456

A

SW2

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

123456

A

SW2

ECMD




(2) (1) (1)

E56

494

E56

495ESB

DPCA21

A20

A19

A17

A16

A13

A12

A11

A5

O2

A10

A14

A15

A18

O1

A9

A8

A7

A6

A4

A3

A2

A1

l2

l1

CDG

A ESTOR2

DPCA21

A20

O21

A7

A4

A3

A2

A1

l22

l21

A8

A5

A6

A10

A9

A12

A11

O22

O23

O24

A13

A19

A17

A16

A18

A14

A15

l23

l24l25

l26

l27

l28

A

Example: ESTOR and ESB.


Installation Connection of the Jbus/Modbuscommunication coupler

Sepam 2000 can be equipped, as an option, with a communication coupler situatedon the CE40 coupler.Please refer to the "RS 485 network connection guide" and "Sepam 2000,"Jbus/Modbus communication" documents for commissioning instructions and thechoice of accessories.A CCA 602 cable (optional), 3 meters long, fitted with a 9-pin plug at either end,may be used to connect the coupler directly to the CCA 609 network connection box(optional).This box allows quick connection to the communication network and does all theearthing necessary for dependable operation.

E56

489




ESTOR ESB CE40

+

B


1

POWER SUPPLY

234

AAA

5


6


78

123456789101112131415161718192021

123456789101112131415161718192021

1234

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

ECMD

123456

A

SW2

B

SW1

B

ECMD

123456

A

SW2

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

ESTOR

A

123456789101112131415161718192021

V-D

C24

-30

48-1

2522

0-25

0

B

SW1

B

123456

A

SW2

ECMD




(2) (1) (1)


Installation Replacement of Sepam 2000 D01and Sepam 2000 D22

Sepam 2000 D01 and D02 units may be replaced by a Sepam D22. The followingprecautions must be taken during the replacement operation.

AssemblyThe sizes and drilling dimensions are the same regardless of the type ofSepam 2000 used.

Connection of phase inputsThe CCA 651 phase current input connectors may be kept or replacedby CCA 660 connectors.

Connection of neutral point current inputsIt is only necessary to connect the neutral point current inputs for the use of the F65restricted earth fault protection.

Other connectionsThey are all the same unless the control logic has been customized.

Sepam 2000 D22 settings

CommunicationGiven the change of application, access to the settings by remote reading is differentfor the following functions:

(1) Available as of version 9940 SFT 2800.For earlier versions, pretrig is equal to 24 periods.

ProtectionTransformer differential (F601) Id/It = unchangedRestricted earth fault (F651) setting unchanged

Parameter settings unchangedControl logic

Time delay settings unchangedParameter settings unchangedStatus

Rated frequency settings unchangedCT ratioCT' ratio

the setting is limited to the In and In' setting(CT rating)

Io' sensor any setting for a D01setting unchanged for a D02

Transformer S: transformer powerUn: rated voltage of winding 1connected to the ECMD2 boardUn': rated voltage of winding 2connected to the ECMD3 boardIndex': vector group of winding 2compared to winding 1

Disturbance recording (1) setting to be defined according to operationCommunication settings unchanged

Time-tagging settings unchanged

Functions DifferencesDifférential transformer the function number is 60 instead of 59

the number of settings is reduced from 3 to 1CT ratioCT' ratio

the number of settings is reduced from 3 to 1

Transformer new function with 4 settings

Disturbance recording (1) access to the setting prétrig


UseCommissioning

Contents

Front face Sepam 2000 2/2

TSM2001 / SFT2801 pocket terminal 2/3Setting tools 2/3Example of use 2/4

Password and Sepam identification 2/5Use of the password 2/5Sepam Identification using the pocket terminal 2/5

Current operation 2/6Operation via the pocket terminal 2/6Event counter 2/7Annunciation 2/7List of messages 2/7

Checking prior to commissioning 2/8Supply voltage 2/8Earthing 2/8Cartridge 2/8Setting of microswitches on rear 2/8Connector 2/8

Commissioning using the TSM 2001 pocket terminal 2/9Switch on the Sepam 2/9Checking mode 2/9Parameter setting mode (1) 2/9Parameterization and setting errors 2/9

Parameter and protection settings 2/10Status menu parameter chart 2/10Protection function setting ranges 2/11Control logic and annunciation 2/11Control logic resource chart 2/11

Connection of logic inputs 2/12

Connection of logic outputs 2/13

Program logic parameters 2/14Parameter setting 2/14Time delays 2/14

Utilization of program logic 2/15D22 operation 2/15Exploitation Sepam 2000 D32 2/15

Disturbance recording 2/16Activation of disturbance recording 2/16Data recorded 2/16

Setting record sheet 2/17

Maintenance 2/18Indicator lamps and display messages 2/18Communication indicator lamps 2/19Unwanted tripping, no tripping 2/19Tests 2/19Sepam replacement 2/19


UseCommissioning

Front face Sepam 2000

bbbb Status indicatorsv green on indicator: lamp shows that Sepam 2000 is energizedv red trip indicator lamp: Sepam 2000 has tripped the circuit breaker after detectinga fault. A related alarm message indicates the cause of trippingv red indicator: lamp shows internal Sepam faults. All the output relays aredropped out (fail-safe position). Refer to the chapter on maintenancev green test indicator: Sepam 2000 is in this mode. Refer to the "Testing" chapter.

b DisplayThe display unit indicates operating and maintenance messages.

b Keys for access to alarm processingv alarm processing keyv alarm key: each time tripping or another event occurs, an alarm message storedin a list of alarms is displayed.The most recent message appears on the display.This key provides access to step by step reading of the list of stored alarm messages.The previous message may be displayed by pressing this key.Display of: ----------- indicates the end of the list of alarm messages.v reset key: the protections trigger circuit breaker tripping and display of the relatedmessages.The red trip indicator lamp lights up. After the fault has been cleared, the userpresses the reset key to acknowledge. The trip indicator is extinguished, the list ofalarms is erased and the device can be closed. The reset key is disabled until thefault has been cleared.v lamp test keys: indicator lamp and display unit operation may be tested bypressing the two keys at the same time.

bbbb CartridgeThe cartridge contains the information required for Sepam 2000 operation, such as:v settings,v stored data,v control and monitoring logic…

bbbb Pocket terminal socketThis socket is used to connect the TSM 2001 pocket terminal or the ACE 900 adapterto the SFT 2801 / SFT 2821 kit (PC link).

E61

746

status indicators

display

keys for access to alarm processing

cartridge

pocket terminal pocket

1 2 5

3 4

1

2

3

4

5

E61

742

1

2

3

4

5

statusindicators 1

diplay 2

keys 3


UseCommissioning

TSM2001 / SFT2801pocket terminalSetting tools

E61

745

The TSM 2001 pocket terminal and the SFT 2801 software for PC operate in thesame way.The TSM 2001 pocket terminal provides access to all the Sepam 2000 datasuch as:b operating assistance messagesb protection settings.The pocket terminal is supplied with power by Sepam 2000 and does not require anybatteries; it can be connected with the power on.The pocket terminal beeps when it is connected.The main menu appears. If not check the brightness adjustment using the dialThe user may access the various items of information from three menu levels.A menu may comprise several pages.To access a menu, simply position the blinking cursor on the desired line and pressthe enter key.The first line of the menu contains the name of the current menu or function.Indication of P/ at the top of the menu shows that the user has entered the password.

E48

125

Role of the keys:b The pocket terminal beeps when the user presses a key that is disable.

b The menu key is used to display the previous menu.

b The and keys are used to move the cursor one line up or down in a menu.To move to the next screen of a menu, the user simply positions the cursor on the lastline and presses the key.To move to the previous screen of a menu, the user simply positions the cursor onthe second line and presses the key.

b The code key is used to enter and exit the parameter setting mode.

b The numeric and . keys are used to enter settings and the password.

b The units key is used to change setting unit multiplying factors (e.g. A, kA, …).

b The data+ and data- keys are used to select setting values from a predefineddata table.

b The clear key is used:v to clear error messagesv to call back a previous setting value during data inputv to reset tripping currents and maximum demand readings to zero.

b The enter key is used to confirm a menu selection or to confirm all the settings fora function.

E48

135

Nota : the first line always contains the name of the currentmenu or function.

4-line display1

data entry keypad2

P/Select:

Protection

Program logic

Add. reading

P/Select:

Status

About Sepam


UseCommissioning

TSM2001 / SFT2801pocket terminalExample of use

E48

136

MT

1058

3

Example of use of the SFT 2801 software with Sepam 2000.

P/Select: Protection Program logic Add. reading

P/Select: Status About Sepam

P/LOGIC OUTPUT 01-02 = 10 011-014 = 0000 021-024 = 0000

P/I PHASEI1 = 123 AI2 = 125 AI3 = 123 A

P/ADD. READING I phase I’ residual I diff., I thru

P/STATUS Rated frequency Phase CT ratio Phase CT’ ratio

P/PROGRAM LOGIC 203 DFA CAT Transformer Differential

P/ABOUT SFT 2800 Program logic

= 500 AP/PHASE CT RATIO In

P/PROTECTION DIFF. TRANS REF’. REF’’.

P/PROGRAM LOGIC Logic input Logic output Monostable relay

F601F651F661

P/DIFF. TRANS Id/It = 15%

menuenter

menu

menu

enter

menu menu menu menu

enter enter enter enter enter

menumenumenumenu


UseCommissioning

Passwordand Sepam identification

Use of the passwordThe user enters a password via the pocket terminal in order to be able to changeparameters and settings.

Code keyWhen the user presses the code key, the following menu appears:

Type the following on the keyboard 6543210 and then press enter.This the password for standard Sepams. If your Sepam has been customized,refer to the documentation provided by your OEM.To exit from this mode, simply:b press the code keyb wait 2 min after activating any key.When the pocket terminal is in parameter setting mode, P\ appears on the top leftof the screen.

Modification of the passwordb switch to parameter Setting mode and access "Password" in the "Status" menu.v enter the old password and confirm by pressing "enter"v enter the new password and confirm by pressing "enter"v to check, enter the new password and confirm by pressing "enter"v confirm again in the window which appears

v choose "clear" to cancel all modifications in progress.b To quit parameter setting mode:v press the "password" key.

Sepam identification using the pocket terminalMenu: About Sepam:

E48

145

E48

146

E48

144

Enter your password

then

press enter key

P\Password

Validate settings

Yes = Enter No = Clear

enter

enter

About Sepam SFT2800 Program logic

SFT2800 6CRD21FA CAT SFT2800 9907

About Sepam SFT2800 Program logic Communicaion

Program logic 203DFA CAT Transformer Differential

Program logic program : 99/01/02 15:08 LOGIPAM : 98.14


UseCommissioning

Current operation

Operation via the pocket terminal

E61

747

Function Pocket terminal menu Name Description Range AccuracyPhase current add. reading I phase I1 winding 1 current measurement 0 to 24In ± 0.5% at In

I2I3I1’ winding 2 current measurement 0 to 24In ± 0.5% at In

I2’I3'I1" winding 3 current measurement (1) 0 to 24In ± 0.5% at In

I2"I3"dPhi1’ measurement of phase shif 0 to 360° ± 3° at In

dPhi2’ between winding 2 currents )

dPhi3’ and winding 1 currents (2

dPhi1" measurement of phase shif 0 to 360° ± 3° at In

dPhi2" between winding 3 currentsdPhi3" and winding 1 currents (2) (1)

Neutral point current add. reading I phase Io measurement of winding 1 neutral point current 0 to 10Ino ± 5% at Ino

add. reading I’ phase Io’ measurement of winding 2 neutral point current 0 to 10Ino ± 5% at Inoadd. reading I" phase (1) Io" measurement of winding 3 neutral point current 0 to 10Ino ± 5% at Ino

Differential and through add. reading Id1 measurement of diffrential current 0 to 24In ± 5%

currents I diff. and I thr. Id2 after phase and amplitude;Id3 expressed in winding 1 ampsIt1 measurement of through current 0 to 24In ± 5%

It2 after phase and amplitude;It3 expressed in winding 1 ampstrip Id1 value of differential current 0 to 24In ± 5%

trip Id2 at the time of tripping;trip Id3 expressed in winding 1 amps (3)

trip It1 value of through current 0 to 24In ± 5%

trip It2 at the time of tripping;trip It3 expressed in winding 1 amps (3)

(1) Sepam 2000 D32 only(2) Angles counted in the clockwise directionE.g.: for a Yd1 transformer, dPhi 1' = dPhi 2' = dPhi 3' = 30°(3) The pocket terminal clear key is pressed to resset currents at the time of tripping.


UseCommissioning

Current operation

Event counter

(1) Requires use of the password

AnnunciationWhen an event is detected by Sepam 2000, an operating message appears onthe display.The messages are stored in a list of 16 alarms and may be reviewed in chronologicalorder of appearance, starting with the most recent:b on Sepam 2000, by pressing the alarm keyb on the pocket terminal, in the program logic menu.

Pressing the reset key will erase the alarms that can be consultedon Sepam 2000. The alarms on the pocket terminal are not erased.

List of messages

P = protectionC = control and monitoringM = maintenanceT = test(1) If your Sepam 2000 has been customized, other messages may appear. Please referto the information package supplied by your OEM.(2) Sepam 2000 D32 only.(3) Sepam 2000 D22 only.

Name Description Reset (1)

C2 number of fault trips KP20

Message (1) Type DescriptionDIFF. P differential protection tripping, percentage setting

REF 2 (2) ou REF P restricted earth fault protection tripping, winding 2REF 3 (2) P restricted earth fault protection tripping, winding 3BUCHHOLZ (3) C buchholz, alarm or tripping

TR TEMP. (3) C thermostat, alarm or trippingAUX.1 (3) C auxiliary 1, alarm or trippingAUX.2 (3) C auxiliary 2, alarm or tripping

EXT TRIP (2) C external trippingCOUPL. TEST T differential protection parameterized in test modeINHIBIT. T inhibition of alarm and tripping outputs

INHIB.OPG T locking, disturbance recording trippingCONNECTOR M connector unpluggedCARTBRIDGE M cartridge and Sepam not compatible

MAINTENANCE M internal Sepam faultM.CARTRIDGE M internal cartridge fault


UseCommissioning

Checking prior to commissioning

These operations must be carried out before Sepam 2000 is energized.

E61

705

Supply voltageEnsure that the cubicle auxiliary supply voltage matches Sepam 2000's operatingvoltage. It is indicated on the rear of the device, beside the power supply connector,by a dot in the voltage box.

EarthingCheck that the Sepam 2000 chassis is earthed by the grounding nut situated on theSepam side panel, on the power supply side. Check that the screw has beentightened.

E61

706

CartridgeCheck that the cartridge is in its slot behind the front wicket door. To do so, open thedoor by pulling on the notch situated on the left side panel. Sepam S36 has a shieldon the right, which resembles the memory cartridge door. This shield is not anotherdoor; do not try to open it. Check, by hand, that the 2 threaded screws have beentightened.Do not plug in or unplug the cartridge while Sepam 2000 is energized.

The cartridge has an identification label on the front. The characters in the secondline of the label indicate the type of Sepam 2000. Ensure that the type matches theSepam 2000 model indicated on the side of Sepam 2000.

ExampleCR (resp. CC) on the cartridge label should match CR (resp. CC) on theSepam 2000 label.

E61

707

Setting of microswitches on rearCheck that the microswitches which define operating modes and Sepam calibrationoperations were correctly set at the time of installation (1).

The microswitches must be set with Sepam de-energizedIf the microswitches are incorrectly set, the measurements given by Sepam 2000will be false and the protections will not trip at the required set points.

ConnectorCheck that all the connectors are correctly connected to the rear of the device andscrewed in.

(1) See"Installation" chapter.

+

A

1234

V-D

C24

-30

48-1

2522

0-25

0

SEPAM 2000S35/S36 CR J1 TBN

S36 D22 F

6CRD22FA961TFA

*** *

V-D

C24

-30

48-1

2522

0-25

0

+

B

A

1234

B

B

123456

A

SW2

SW1

B

B

123456

A

SW2

SW1


UseCommissioning

Commissioning usingthe TSM 2001 pocket terminal

Switch on the SepamWhen switched on, Sepam 2000 automatically performs the following sequence,which lasts for about 5 seconds:b green "on" and red indicators onb beep sound (if the pocket terminal is connected)b red indicator switches offb setting of watchdog contactb testing of display units: 0.0.0.0.0.0.0.0.0.0.0. then ***********, then -----------.After start Sepam 2000 starts up, check that there are no messages present bypressing the "alarm" key.

Checking modeAll information may be accessed for checking purposes without the risk of changingparameters and settings.

Parameter setting mode (1)

This mode is reserved for commissioning and maintenance.The entry of a password is required.P\ appears at the top left of the screen (2).

Parameterization and setting errorsChanging a status parameter may put a protection setting outsidethe tolerance range.Sepam 2000 detects this problem and displays the following message:

The user should then check and, if necessary, change the protection settings.The PROTECTION line blinks until the settings have been corrected.Settings out of range.A protection value may be out of range when it is set.Sepam 2000 detects this and indicates the permissible range of settings.

All the parameters and settings are available in 4 menus:b general parameters: status menub protections: protection menub operating parameters: program logic menub commissining and operating assistance measurements: add. reading menu.

(1) All parameters and settings must be based on a network discrimination study that is to becarried out prior to commissioning.

(2) This mode is automatically cancelled if no keys are pressed for about 2 min. It may becancelled manually by pressing the Code key.

E51

985

E51

984

P\ CT ratio

protection setting

out of range

press clear

P\ DIFF.TRANS F601

Id/It out of range

15% < Id/It < 50%

press clear


UseCommissioning

Parameter and protection settings

Status menu parameter chart

(1) Sepam 2000 D32 only.(2) Refer to Jbus/Modbus communication document regarding commissioning ofcommunication.(3) For a 2-winding transformer, S is the tranformer rated power. For a 3-winding transformer,S is the rated power(4) Setting limits: 0.1In ≤ Ino ≤ 2In(5) Setting limits for each winding,

0.4 < < 10

(6) TC + CSH30 is the recommended value.Cor bal. CT + ACE 990 is not opérational.

(7) 0 = not time-tagged,1 = time tagged.

All events are set to zero by default.(8) Available as of version 9940 of SFT 2800.

Heading Name Function Command SelectionFrequency Fn network frequency data + and -

keys50 or 60 Hz

Phase CT ratio In CT ratingwinding 1

numerickeys

adjustable from10 A to 6250 A (4)

Phase CT' In CT ratingwinding 2

numerickeys


Phase CT'' (1) In CT ratingwinding 3

numerickeys


Io sensor sensor type of neutral point currentmeasurement winding 1

data + and -keys

b sum of 3Ib 2 A core bal. CTb 30 A core bal. CTb CT + CSH30b core bal. CT

+ ACE990 (8)

Ino CT rating in the case ofCT + CSH30

numerickeys

setting between1 A and 6250 A

Io’ sensorIo" sensor

sensor(6)

type of neutral point currentmeasurementwinding 2 (Io')winding 3 (Io'')

data + and -keys

b sum of 3Ib 2 A core bal. CTb CT + CSH30b core bal. CT

+ ACE990 (8)

Ino CT rating in the case ofCT + CSH30

numerickeys

setting between1 A and 6250 A (4)

Transformer sensor’ vector group of winding 2reference winding 1

numerickeys

0 to 11

sensor"(1)

vector group of winding 3reference winding 1

numerickeys

0 to 11

S rated power (3) numerickeys

1 MVA to 999 MVA(5)

Un rated powerwinding 1

numerickeys

220 V to 800 kV

Un’ rated powerwinding 2

numerickeys

220 V to 800 kV

Un" (1) rated powerwinding 3

numerickeys

220 V to 800 kV

Disturbancerecording (8)

Pretrig number of periods beforetriggering event

numerickeys

setting between1and 85 periods

Communica-tion (2)

Jbus/Modbus

speed transmission speed data + and -keys

300, 600, 1200,2400, 4800,19200, 38400 bds

adress Sepam 2000 station numberin the network

numerickeys

from 1 to 255

parity transmission speed data + and -keys

even, oddno parity

Time tagging (2) synchro type of synchronizationused

data + and -keys

via:- network- input I11 or I21

events I1 I2I11 to I18I21 to I28I31 to I38KTS1 to KTS32KTS33 to KTS64

numerickeys

by 8-bit word

Password see paragraph at the endof this chapter

(7)

S3 Un In


UseCommissioning

Parameter and protection settings

Protection function setting ranges

(1) Advised setting: for CT of 5P type, Id/It = tr + 15% with tr refers to the variation range of thetransformer ratio for CT of 10P type, Id/It = tr + 30%.(2) Sepam 2000 D32 only.Refer to the "testing" section for information on protection testing.For further information on protection function characteristics, refer to the main Sepam 2000 D22or Sepam 2000 D22 - D32 technical manual.

Control logic and annunciationSepam 2000 has a standard program logic which allows operation for most commoninstallations; it can be adapted to suit each application scheme by parameter settingat the time of commissioning.

If the Sepam 2000 program logic is customized, the role of the parameters may bedifferent; please refer to the information package provided by the installer.

Control logic resource chart

Displaymessages

Function ANSI Rep Parameters Commands Scope of settings

DIFF. transformerdifferential

87 T F601 Id/Itpercentage setting

numerickeys

from 15 to 50 % (1)

REF2 (2)

orREF

restrictedearth faultwinding 2

64REF F651 Isosetting

numerickeys

from 1 A to 5 kA, with the followingconditions:from 0.05 In' to 0.8 In' if In' ≥ 20 A,from 0.1 In' to 0.8 In' if In' < 20 A

REF3 (2) restrictedearth faultwinding 3

64REF F661 Isosetting

numerickeys

from 1 A to 5 kA, with the followingconditions:from 0.05 In" to 0.8 In" if In" ≥ 20 A,de 0.1 In" to 0.8 In" if In'' < 20 A

Function Name CommentsLogic input status I1, I2

I11 to I381 = input supplied0 = input not supplied

Input relay status O1, O2O11 to O34

1 = contact closed0 = contact open

Internal relay status K1 to K512 1 = contact closed0 = contact open

Stored bistable status B1 to B128 1 = contact closed0 = contact open

Counter content C1 to C24 reading

Time delay output status T1 to T60 adjustable from 50 ms to 655 susing number and unit keys

Parameters:Latched contacts

Temporary contactsImpulse contacts

KP1 to KP16KP33 to KP48KP17 to KP32KP49 to KP64

set to 1 or 0 using data +anddata - keys or number keys 0 and 1

Remote control contacts:Latched contactsImpulse contacts

KTC1 to KTC32KTC33 to KTC96

contacts set to 1 or 0 from remotecontrol system

Remote indication contacts KTS1 to KTS64 contacts set to 1 or 0 in order to beread by a remote control system

Alarms messages AL1 to AL16 reading of the last 16 control logicmessages activated (even if erasedfrom the display)


UseCommissioning

Connection of logic inputs

Note (D32 application)The available inputs can not be all used by a personalized application.

ESB Sepam D22 Sepam D32I1 auxiliary alarm 1 availableI2 auxiliary tripping 1 external tripping

ESTOR1 Sepam D22 Sepam D32I11 reserved for external synchronization reserved for external synchronizationI12 remote control enable remote control enable

I13 auxiliary alarm 2 availableI14 auxiliary tripping 2 availableI15 thermostat alarm available

I16 thermostat tripping availableI17 buchholz alarm availableI18 buchholz tripping available

ESTOR2 Sepam D32

I21 available

I22 available

I23 available

I24 available

I25 available

I26 available

I27 available

I28 available


UseCommissioning

Connection of logic outputs

ESB Sepam D22 Sepam D32O1 winding 1 tripping winding 1 trippingO2 winding 2 tripping winding 2 tripping

ESTOR1 Sepam D22 Sepam D32O11 alarm: thermostat or buchholz or

auxiliary 1 or auxiliary 2available

O12 winding 1 tripping indication winding 1 tripping indicationO13 winding 2 tripping indication winding 2 tripping indication

O14 differential or restricted earth faultprotection tripping indication

differential or restricted earth faultprotection tripping indication

ESTOR2 Sepam D32

O21 winding 3 tripping

O22 winding 3 tripping indication

O23 available

O24 available


UseCommissioning

Program logic parameters

Parameter setting

(1) Sepam 2000 D32 only(2) Sepam 2000 D22 only.

Time delaysThe time delays are factory - set by default to 0.2 s.

Parameter Function Sepam D22 Sepam D32Tripping control

KP1 = 0 winding 1 breaker with shunt trip coil bKP1 = 1 winding 1 breaker with undervoltage release coil tripping bKP2 = 0 winding 2 breaker with shunt trip coil b bKP2 = 1 winding 2 breaker with undervoltage release coil tripping b bKP3 = 0 winding 3 breaker with shunt trip coil bKP3 = 1 winding 3 breaker with undervoltage release coil tripping b

Parameterization of inputKP5 = 0 inputs I15, I16, I17, I18 (thermostat/buchholz) activated by N/O contact bKP5 = 1 inputs I15, I16, I17, I18 (thermostat/buchholz) activated by N/C contact bKP7 = 0 inputs I1, I2 (auxiliary 1) activated by N/O contact b

inputs I2 (external tripping) activated by N/O contact bKP7 = 1 inputs I1, I2 (auxiliary 1) activated by N/C contact b

inputs I2 (external tripping) activated by N/C contact bKP8 = 0 inputs I13, I14 (auxiliary 1) activated by N/O contact bKP8 = 1 inputs I13, I14 (auxiliary 1) activated by N/O contact b

Parameterization of outputsKP10 = 0 I2 (auxiliary 1) and I14 (auxiliary 2)(2) trip winding 1 breaker (O2 and O13) b bKP10 = 1 I2 (auxiliary 1) and I14 (auxiliary 2)(2) trip winding 1, 2 and 3 breakers

(O1 and O2, O12, O13, O21 and O22)(1)b b

KP13 = 0 Impulse outputs O1, O2, O12, O13, O21(1), O22(1) (tripping and indication)(set by T1 and T2)

b b

KP13 = 1 Impulse outputs O1, O2, O12, O13, O21(1), O22(1) (tripping and indication) b bMaintenance and testing

KP6 = 1 change to test mode and inhibition of tripping outputs b bKP9 = 1 inhibition of tripping outputs b bKP20 = 1 reseting of fault trip counter b b

Disturbance recordingKP50 = 1 tripping (inhibition) b bKP51 = 1 unlocking and automatic tripping b bKP52 = 1 unlocking and manual tripping b b

Remote settingKP38 = 0 remote setting active b bKP38 = 1 remote setting inactive b b

Time delay Function Sepam D22 Sepam D32T1 minimum duration of tripping order O1 and indication O12 b bT2 minimum duration of tripping order O2 and indication O13 b b


UseCommissioning

Utilization of program logic

D22 operation

(1) According to parameter setting

Exploitation Sepam 2000 D32

(1) According to parameter setting.

Function Command AnnunciationO1winding 1

O2winding 2

O11 O12winding 1

O13winding 2

O14 Message Indicator

Differential protection b b b b b DIFF. trip

Restricted earth fault b b b b b REF trip

Alarm buchholz b BUCHHOLZ trip

Buchholz trip b b (1) b b (1) BUCHHOLZ trip

Alarm thermostat b TR TEMP trip

Thermostat trip b b TR TEMP trip

Auxiliary 1 alarm b AUX. 1 trip

Auxiliary 1 trip b b (1) b b (1) AUX. 1 trip

Auxiliary 2 alarm b AUX. 2 trip

Auxiliary 2 trip b (1) b b (1) AUX. 2 trip

Trip output inhibition INHIBIT. test(fixed)

Test mode and tripoutput inhibition

COUPL.TEST test(fixed)

Test mode and tripoutput operative

COUPL.TEST test(blinking)

Sepam connector unplugged CONNECTOR

Disturbance recordingtriggering inhibition

OPG INHIB.

Function Command AnnunciationO1winding 1

O2winding 2

O21winding 3

O12winding 1

O13winding 2

O22winding 3

O14 Message Indicator

Differential protection b b b b b b b DIFF. trip

Restricted earth faultwinding 2

b b b b b b b REF 2 trip

Restricted earth faultwinding 3

b b b b b b b REF 3 trip

External tripping b b (1) b (1) b b (1) b (1) EXT TRIP trip

Trip output inhibition INHIBIT. test(fixed)

Test mode and tripoutput inhibition

COUPL. TEST test(fixed)

Test mode and tripoutput operative

COUPL. TEST test(blinking)

Sepam connector unplugged CONNTECTOR

Disturbance recordingtriggering inhibition

OPG INHIB.


UseCommissioning

Disturbance recording

Activation of disturbance recordingA new record is activated:b locally, via the KP52 parameterb remotely, via the KTC52 remote control orderb automatically, when one of the following protections trips:v differentialv restricted earth fault, winding 2v restricted earth fault, winding 3 (Sepam D32 only).

Data recordedAll the analog inputs are recorded a,d the logical states recorded are as follow:

Fonction Name of logical stateD22 D32

Winding 1 tripping KFR1 KFR1Winding 2 tripping KFR2 KFR2Winding 3 tripping KFR6

Differential protection KFR3 KFR3Restricted earth fault protection, winding 2 KFR4 KFR4Restricted earth fault protection, winding 3 KFR5


UseCommissioning

Setting record sheet

Project: ...............................................................................Switchboard: ......................................................................Panel: .............................................................................................................................................................................

Sepam 2000 differentialType of Sepam 2000

Serial number

Status menu parameterHeading Name FunctionFrequency Fn Network frequency 50 Hz 60 Hz

Board 2 winding 1 Board 3 winding 2 Board 4 winding 3CT, CT',CT" phase In CT rating (in Amps)Io sensorIo' sensorIo'' sensor

Ino Residual currentmeasurement

Sum 3lCore bal. 2A

Core bal. 30ATC + CSH30

A kACore bal. CT + ACE990

A kA

Sum 3lCore bal. 2A



A kA

Sum 3lCore bal. 2A



A kATransformer index'

index"Vector group compared towinding 1

S PowerUn, Un',Un" Rated voltage

Disturbancerecording

pretrig Number of periods beforetriggering event periods

Communication Address Sepam station numberin network

Bauds Transmission speed(Jbus/Modbus)

300 600 1200 2400

4800 9600 19200 38400Parity Transmission format

(Jbus/Modbus)even odd no parity

Time tagging Synchro Type of synchronizationused

via network via input I11

via input I21MicroswitchsettingPut an X in a box toindicate switch settinge.g. switch set to right

ECMD current board

SW2

SW1

SW2

SW1

SW2

SW1

Program logic parametersKP 0 ou 1 D22 D32 KP 0 ou 1 impulsionnelKP1 winding 1 breaker: undervolt. trip coil KP50 disturbance recording inhibitionKP2 winding 2 breaker: undervolt. trip coil KP51 automatic triggeringKP3 winding 3 breaker: undervolt. trip coil of disturbance recordingKP5 I15, I16, I17, I18 for normally KP52 manual triggering of

closed contact (NC) disturbance recordingKP7 I1, I2 for normally Protection setting record

closed contact (NC) DifferentialKP8 I13, I14 for normally Id/It % percentage set point

closed contact Restricted earth fault, winding 2KP10 I2, I14 for tripping winding 1 and 2 Iso Amps set pointKP13 latching outputs Restricted earth fault, winding 3KP38 remote setting disable Iso Amps set pointTime delay (value) D22 D32

T1 impulse O1 and O12T2 impulse O2 and O13T2 impulse O2, O13, O21 and O22

D

X


UseCommissioning

Maintenance

Sepam 2000 comprises self-testing and self-diagnosis to facilitate installationmaintenance.

Indicator lamps and display messagesb Green indicator lamp lit up Sepam 2000 is energized.

b No indicator lamps lit up.

b Red lamp indicates internal Sepam 2000 faults.Sepam continuously performs on-line internal tests. When the test results arenegative, Sepam 2000 automatically runs a series of sequences which result ineither:v automatic reinitialization (minor fault, e.g. transient auxiliary power supply break).Sepam 2000 carries out a complete restart sequence. If restart is successful,Sepam 2000 operates again normally. All the output relays are de-energized (1),v switching to the fail-safe position. All the output relays drop out (1) in order to avoidinadvertent commands, and the watchdog drops out as well.

The following may cause internal faults:b Missing cartridge:v red indicator lamp lit upv display OFFv no dialogue with pocket terminalv no dialogue with communication linkv watchdog dropped outv switching to fail-safe position.Sepam 2000 will not start, lacking a program: this is a major fault.

b Configuration fault:v red indicator lit upv red lamp indicates CARTRIDGEv no dialogue with the pocket terminalv no dialogue with the communication linkv the watchdog is dropped outv switching to fail-safe positionv Sepam 2000 is shut down: this is a major fault.

Caution: do not insert or remove the cartridge while Sepam is energized.Disconnect the auxiliary power supply and wait 2 seconds before handlingthe cartridge.

b Other major faults:v Red indicator lit upv display indicates MAINTENANCE or CARTRIDGE or MCARTRIDGEv no dialogue with the pocket terminalv no dialogue with the communication link (if the CPU is faulty)v the watchdog is dropped outv switching to the fail-safe position. Sepam 2000 is shut down: this is a major fault.

(1) This may cause tripping with undervoltage control logic ("fail-safe" logic)("fail-safe" logic scheme).

Check the auxiliary power supply and connections to the CE40 board.Perform the lamp test.

Check whether the type of cartridge with the type of Sepam 2000.

Check the references on the Sepam 2000 and on the cartridge(refer to chapter on Sepam identification).

Consult your maintenance department.


UseCommissioning

Maintenance

Indicator lamps and display messages (cont’d)b Minor or partial faults:v red indicator extinguihedv display indicates MAINTENANCE or CARTRIDGEv dialogue with the pocket terminal is maintainedv dialogue with the communication link is maintainedv the watchdog does not drop outv switching to the fail-safe position.

Sepam 2000 is operating, however it has detected a transient fault or has failedto pass self-testing.Consult your maintenance department.

b The display indicates: CONNECTORIndication that one or more connectors are unplegged.Check the plugging in and screwing on of the connectors on the rear of the device.Check that the DPC has been strapped on all the connectors.

Communication indicator lampsThese lamps are located at the rear of the device on the CE40 module when themodule is equipped with the communication option.

b Green indicator lamp blinking: indicates traffic on the line.This is the normal operating mode.

b Indicator lamps extinguished: there is no communication.Check the parameters and settings.

b Red indicator lamp lit:indicates initialization of the coupler, which lasts about 2 seconds, or a coupler fault.Consult your maintenance department.

b Red indicator lamp lit up and the recommendations given in the maintenancechapter do not allow Sepam 2000 to be restarted.Call in the maintenance department.

Unwanted tripping, no trippingIncorrect parameter setting may cause unwanted tripping or no tripping. All of theparameters and settings must be based on the network discrimination study to becarried out prior to commissioning.Check the parameters and settings.

TestsLamp test: when the user presses the - lamp test - keys at the same time,all the indicators on the front of the device light up, as well as the displaywhich alternately indicates 0.0.0.0.0.0.0.0.0.0.0 then ***********, then -----------.

E61

735

Sepam replacementWhen Sepam 2000 is replaced:b dismantle the Sepam 2000 to be replacedb retrieve the cartridgeb mount the Sepam replacement (hardware configuration)b install the cartridgeb check the compatibility between Sepam and the cartridge(see chapter on "identification")b set microswitches SW1 and SW2 on the rear of the device in the same positionsas they were in on the Sepam 2000 that was replacedb install the connectors, checking their markingsb energize Sepam.



Generalcharacteristics

Contents

Characteristics 3/2

Output relays characteristics 3/3Output relays of ESB and ESTOR boards manufacturedprior to 1.1.2000. 3/3Output relays of ESB and ESTOR boards manufacturedas of 1.1.2000. 3/3

Dependability 3/4Definitions 3/4Consideration of dependability in Sepam 2000 3/4Dependability needs: a trade-off between two unwanted events 3/4Self-monitoring functions and fail-safe position 3/4

Autotests 3/5Sepam 2000 functional diagram 3/5List of Sepam 2000 self-tests 3/5

Qualification tests 3/6Electrical tests 3/6Performance tests in reference conditions 3/6Testing of output effects in rated domains 3/6Effects of the equipment on the environment 3/6Effects of the environment on the equipment 3/6Reference documents 3/6

Electrical tests 3/7Aim 3/7Preliminary operating test 3/7Grounding continuity 3/7Insulation testing 3/7Dielectric strength 3/7Impulse wave withstand 3/7Power supply circuit robustness 3/7

Performance tests in reference conditions 3/8Aim 3/8Checking of parameter specifications 3/8Miscellaneous 3/8

Testing of output effects in rated domains 3/9Aim 3/9Analog input circuits 3/9DC power supply 3/9Logic input circuits 3/9Logic output circuits 3/9Ambient temperature 3/9

Effects of the environment on the equipment 3/10Aim 3/10Sensitivity to electromagnetic interference 3/10Climatic and mechanical robustness tests 3/10

Effects of the equipment on the environment 3/12Aim 3/12DC power supply 3/12Radiofrequency interference 3/12

Reference documents 3/13Standards 3/13



Characteristics

Sepam 2000 logic inputsConnection by 0.6 to 2.5 mm2 wire to CCA 621 (CCA 621)According to Sepam 2000 power supply 24/30 Vdc 48/127 Vdc 220/250 Vdc

Consumption 4 mA 4 mA 3 mALevel 0 < 6 V < 25.4 V < 50 VLevel 1 > 17 V > 33.6 V > 154 V

Permissible steady state overload 36 V 152 V 275 VPick up time 10 ms 10 ms 10 msInsulation 2 kV 2 kV 2 kV

Sepam 2000 output relaysConnection by 0.6 to 2.5 mm2 wire to CCA 621 terminalMaking capacity 15 A

400 ms overload 15 ASteady state current 8 ANumber of switching operations 10 000 at full load

Contact/coil insulation 2 kV rmsBreaking capacity 48 Vdc 125 Vdc 200/250 Vdc

DC with resistive loadDC at L/R = 20 msDC at L/R = 40 msAC with resistive loadAC with p.f. = 0.3

4 A2 A1 A8 A5 A

0.8 A0.4 A0.2 A8 A5 A

0.3 A0.15 A0.1 A8 A5 A

Phase current inputs for 1 A or 5 A CTPhase current inputs for 1 A or 5 A CT by 4 mm eye lugs, to CCA 660 or CCA 650 connector

(connector with incorporated CTs) disconnectable on line

Wire cross-section 6 mm2 maxiInput impedance < 0.001 ΩPower consumption < 0.001 VA for 1 A

Steady state thermal withstand 3 In1-second overload 80 InOperating range up to 24 In

CCA 660 or CCA 650 dielectric insulation 2 kV rms 1 min. (4) - IEC 60255-5Input for earth current measurement with 1 A or 5 A CT

Connection by 0.6 to 2.5 mm2 wire, to CCA 606 screw terminal pad

Input impedance < 4 ΩPower consumption < 0.1 VASteady state thermal withstand 10 x core balance CT rating (6)

1-second overload 500 x core balance CT rating (6)

Operating range 10 x core balance CT rating (6)

Insulation input not insulated from earth (5)

Jbus/Modbus communication inputConnection cable (CCA 602 or CCA 619 accessory)Transmission asynchronous serial

Protocol Jbus/Modbus slaveElectrical interface according to EIA- RS 485 standardMaximum distance without repeater 1200 m

Number of Sepam 2000s on the line 31 maximumRates 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 bits/sInsulation 1 kV rms

Power supplyConnection by 0.6 to 2.5 mm2 wire to CCA 604 terminalDielectric insulation 2 kV rms 1 mn

Tension voltage 24/30 Vdc 48/127 Vdc 220/250 Vdc 100/127 Vca 220/240 VcaPermissible variations (3) -20% to +20% -20% to +20% -20% to +10% -20% to +20% -20% to +10%

Consumption on power supply circuit (1) 24 Vdc 48 Vdc 127 Vdc 220 Vdc

Inrush current 5 A/0.2 s 1 A/0.5 s 1.5 A/0.5 s 1 A/.2 sConsumption all relays deactivated 0.6 A 0.28 A 0.12 A 0.08 AConsumption all relays activated 1 A 0.6 A 0.22 A 0.13 A

Weight (2) minimum maximumSepam S36 8 kg 10.5 kg

(1) The figures are given for:b Jbus/Modbus coupler option included (Subtract 1 W for Sepam 2000 without communication)b clain pocket terminal not connected (Add 1/2 W if the pocket terminal is connected)b Sepam S36 equipped with 3 ESTOR boards.(2) The figures give the weight according to the number of options for each model.(3) Correct operation of Sepam 2000 is only guaranteed within these ranges.this refers to the isolation procured by the CCA 660 core balance CT connector. The Sepam 2000 input on the sub-D connector is not isolated from the earth.(5) This refers to the Sepam 2000 input. The CSH 30 primary, for its part, is isolated from the earth.(6) Expressed as CT primary current.



Output relays characteristics

Output relays of ESB and ESTOR boards manufactured prior to 1.1.2000.b ref. ESB24/30V: 3124217b ref. ESB48/125V: 3122347b ref. ESB220/250V: 3124287

E61

467

b Sepam 2000 output relay: O1, O2, O11 toO14, O21 to O24, O31 to O34 contacts.

Output relays of ESB and ESTOR boards manufactured as of 1.1.2000.b ref. ESB24/30V: 03145141FAb ref. ESTOR24/30V: 03145157FA

b ref. ESB48/125V: 03145347FAb ref. ESTOR48/125V: 03145161FA

b ref. ESB220/250V: 03145149FAb ref. ESTOR220/250V: 03145165FA

E61

466

b Sepam 2000 output relay:O1, O2, O11 to O14, O21 to O24, O31 to O34 contacts.

b Sepam 2000 "watch dog" output.

10 20 40 60 80 100 2000.1

0.2

0.4

0.6

0.8

1

2

4

6

8

10

U(V)

I(A)

DC : L = 0.04 sR

AC: resistive load

AC: cos ϕ = 0.3

500 W

25 W

DC : L = 0.02 sR

DC: resistive load

1254824 10 20 40 60 80 100 2000.1

0.2

0.4

0.6

0.8

1

2

4

6

8

10

V(V)

I(A)

DC : L = 0.02 sR

AC: resistive load

24 48 125

25 W

50 W50 W

100 W

100 W

250 W250 W

DC: resistive load

10 20 40 60 80 100 2000.1

0.2

0.4

0.6

0.8

1

2

4

6

8

10

U(V)

I(A)

DC : L = 0.04 sR

AC : resistive load

AC : cos ϕ = 0.3

500 W

25 W

DC : L = 0.02 sR

DC:

1254824 10 20 40 60 80 100 2000.1

0.2

0.4

0.6

0.8

1

2

4

6

8

10

V(V)

I(A)

DC : L = 0.02 sR

AC : resistive load

24 48 125

25 W

50 W50 W

100 W

100 W

250 W250 W

DC : resistive load

resistive load



Dependability

This chapter presents the main definitionsof dependability and how it is taken into considerationin Sepam 2000, an analysis of the experience gainedfrom feedback on the installed equipment baseand the maintenance of Sepam 2000.

DefinitionsThe definitions which follow are the main definitionsof dependability applied to protective devices:b The reliability of a protective device is its capability ofperforming its function (or functions) over a givenperiod of time in the operating conditions specified bythe manufacturer, i.e. mainly the capability of trippingwhen required and the capability of not tripping whenunwanted.b The availability of a protective device is its capabilityof being in a state to perform its function (or functions)at a given point in time in the operating conditionsspecified by the manufacturer.These values do not necessarily have the samemeanings, depending on whether they are consideredfrom the viewpoint of the protective device or theelectrical installation.b The availability and maintainability of the protectivedevice contribute to the safety of people andequipment. The reliability of the protective devicecontributes to the uninterrupted availability of the powersupply.

Consideration of dependability in Sepam 2000By the same token as electromagnetic compatibility, dependability is taken intoconsideration right from the start of the development of Sepam 2000.A Preliminary Risk Analysis (PRA) is used to list the unwanted events linked to thedifferent functions performed by Sepam. Quantified dependability targets are setin accordance with the main unwanted events revealed by the PRA.Specialized dependability assessment and modeling techniques are used tointerpret the targets in terms of design requirements.b The predicted reliability analysis determines the failure rate of each Sepam 2000component in use-related conditions. Compendiums of reliability data such as theMilitary Handbook 217 (MIL HDBK 217) and the CNET RDF93 are used for this.b The Failure Modes, Effects and Criticality Analysis (FMECA) analysis is used toanalyze the effects of a simple component failure on the Sepam 2000 functions andto list the means available to detect them. The FMECA makes it possible to correctcertain risks of malfunctions and specify the self-monitoring functions.b The unwanted events are modeled to calculate the probability of their occurrenceand to check that the dependability targets are being met.b A large share of the functions of digital protective equipment devices areperformed by the software. It is therefore essential to master the quality of thesoftware in order to attain the overall dependability targets. Software quality ismastered by the implementation of a rigorous development method.b This method is derived from the recommendations set by the French (AFCIQ) andinternational (IEEE) quality authorities. It stipulates:v the breakdown of development into a series of phasesv the use of design and encoding rules and methods aimed at achieving a high levelof software structuringv the use of software configuration management tools which allow all the softwarecomponent parts to be managed.

Dependability needs: a trade-off betweentwo unwanted eventsThe mission of protection systems used with circuitbreakers is to guarantee the safety of the installationwhile, at the same time, ensuring the best levelof interrupted power supply.For Sepam 2000, this mission is conveyed by twoevents, the target occurrence of which should be zero.b First unwanted event:unwanted tripping of the protective device.An uninterrupted power supply is essential for bothindustrialists and utilities. Unwanted tripping due to theprotective device is liable to generate substantialfinancial losses. This event can be avoided byimproving the reliability of the protective device.b Second unwanted event:failure of the protective device to trip.The consequences of a fault that is not cleared areliable to be disastrous. For the sake of operating safety,the protective equipment must detect power systemfaults selectively and as quickly as possible.This event can be avoided by improving theavailability of the protective device.

Self-monitoring functions and fail-safe positionSepam 2000 units are equipped with self-monitoring functions (self-tests),which detect internal failures. The failures are classified in two categories:major failures and minor failures.b A major failure affects the system’s common hardware resources (e.g. programmemory and working memory).Sepam 2000 is no longer operational. This type of failure may or may not lead to MVfault tripping or unwanted tripping, in which case Sepam 2000 must react quickly andgo into the fail-safe position.The fail-safe position is characterized by:v lockout in neutral position of the Processing Unitv an indicator lit up on the front of the devicev a message on the displayv the Watchdog relay in fault position (deactivated)v the relay outputs (logic outputs) in the deactivated positionv a break in the relay output supply for Sepam S46.b Following a minor failure, Sepam 2000 is in downgraded operation.It can continue to carry out all of its protection functions if the functions affected areperipheral ones (display, communication).This classification of failures makes it possible to obtain a compromise betweenbetween a high level of safety and a high level of availability. The self-tests performedin Sepam 2000 are summarized in the diagram on the next page.



Autotests

Sepam 2000 functional diagram

List of Sepam 2000 self-tests

E61

468

power supply

processingunit

cartridge(EPROM)

program logiclogic I/O

currentacquisition

CB control I/O communication

display / keypad

internal Bus

Functions Type of self-test Execution periodicity Fail-safe positionPower supply detection of processor supply out of range detection

of a drop in supply voltagecontinuously YES

YESCurrent acquisition detection of analog channel saturation current channel

consistency checkcontinuously YES

YESCB control inputs/outputs output relay supply checking Input / Output (I/O)

control tests checking of output statusswitching onand continuously

YESYES

Logic inputs / outputs program logic output relay supply checking switching onand continuously

YESYES

Processing unitCPU testworking memory testsignal selector & signal digitization testmeasurement acquisition testhardware & cartridge software consistency testsoftware watchdog(limited time allocation to each function)

switching on and:continuouslyperiodicallycontinuouslycontinuouslyperiodicallycontinuously

YESYESYESYESYESYES

Cartridgecartridge present testmemory testnumber of entries in parameter backup memory test

switching on and:continuouslyperiodicallycontinuously

YESYESNO

Display memory testdisplay CPU test

switching onand periodically

NONO

Communicationsmemory testcommunication CPU testmonitoring of dialogue with processing unitcontinuously

switching on and:periodicallyperiodicallycontinuously

NONONO



Qualification tests

This chapter presents the main specifiedproperties (mechanical, electrical,functional, etc...) that are verified during thequalification tests carried out in the factory("manufacturer" tests).It describes:b the content of each testb the standards and reference documentsb the expected results

It is divided into 5 sections, grouping together the different items involved in productqualification by theme:

Electrical testsTests related to the protection of people and equipment (grounding continuity,insulation, fuses…).

Performance tests in reference conditionsVerification of special functional features (hardware and software) of the productwhen used in the "reference environment" (i.e. temperature, power supply…using strict tolerances).

Testing of output effects in rated domainsExamination of the rated operating domain (input signals, output loads,power supply...), using one variable at a time.

Effects of the equipment on the environmentTesting of interference (electromagnetic, mechanical...) generated by the product.

Effects of the environment on the equipmentTesting of the product's sensitivity and/or resistance to electromagnetic, mechanical,chemical... interference.

Reference documentsIn order to facilitate reading, only documents of prime importance are succinctlyreferenced in each test description.



Electrical tests

Power supply circuit robustnessShort-circuit current behaviourAim: to ensure that the device's circuits are capable of withstanding, withoutdamage, stress caused by short-circuit currents resulting from internal failures.Acceptance criteria:During the test:b short-circuit current less than 15 A for a maximum of 20 msb effectiveness of protective devicesAfter the test:b visual check of cabling, connectors, printed circuit pathsb return to normal operation after resetting or replacement of the protective devices.

Polarity reversal behaviourAim: to ensure that the device is capable of withstanding, without damage,an accidental power supply polarity reversal.Reference documents: standards: IEC 61131-2.Severity: operation for at least 10 seconds with the power supply polarities reversed.Acceptance criterion:Return to normal operation after the power supply polarities have been correctlyre-established.

AimThe aim of these tests is to test the effectivenessof the measures taken to protect peopleand equipment.

Preliminary operating testAim: to ensure the integrity of the item being tested(the test procedure allows the device, its integratedcomponents and remote functions to be tested at thesame time).

N.B. The test is not exhaustive. It is merely aimed atproviding a good "macroscopic" view of the item beforeand/or after the application of potentially destructivestress, in a minimal test environment.

Grounding continuityAim: to test the continuity of grounding protection.Reference documents:standards: IEC 61131-2Severity: polarizing current: 30 A.Acceptance criterion: R < 0.1Ω.

Insulation testingMeasurement of insulation resistanceAim: to test the constructive integrity of the item beforedielectric stress is applied.Reference documents:standards: IEC 60255-5Special conditions: measurement is performed inboth common and differential modes.Severity: applied voltage: 500 VDCAcceptance criterion: Ri u 100 MΩ.

Dielectric strengthAim: to ensure that the dielectric strength of the insulation complies withspecifications.Reference documents: standards: IEC 60255-5Acceptance criteria:During the test:b no breakdowns, perforations, warpingAfter the test:b the device must correspond to all of its functional specifications.

Severity:

Circuits Test voltageCommon mode Differential mode

Power supply 2 kVrms/50 Hz N/A

Logic inputs 2 kVrms/50 Hz N/AAnalog inputs 2 kVrms/50 Hz N/ALogic outputs 2 kVrms/50 Hz 1 kVrms/50 Hz(*)

Setting terminal socket 0.5 kVrms/50 Hz N/A

(*) With contacts open

Impulse wave withstandAim: to ensure that the device is capable of withstanding high overvoltage for veryshort periods of time without any damage.Reference documents: standards: IEC 60255-5Acceptance criteria:During the test:b no breakdowns, performations, warpingAfter the test:b the device must correspond to all of its functional specifications.

Severity:

Circuits Test voltageCommon mode Differential mode

Power supply 5 kV 5 kV

Logic inputs 5 kV 5 kVAnalog inputs 5 kV 5 kVLogic outputs 5 kV N/A

Pocket terminal socket 1 kV 0.5 kV



Performance testsin reference conditions

AimThe aim of these tests is to test the special functional features (hardware andsoftware) of a device in its "reference environment", i.e. temperature, power supply,etc., using strict tolerances.

Checking of parameter specificationsAim: to check conformity of input/output interfacing characteristics.

Analog input circuitsCompostion of testsFor each type of input (sensors, process, etc.), minimum testing includes:b dynamics and accuracy (examination of the rated domain)b input impedance (examination of the rated domain)b passband.

Logic input circuitsComposition of testsFor each type of input (static relay, etc.), minimum testing includes:b input impedance (exploration of rated domain)b thresholds (high, low, hysteresis)b minimum set-up time (high and low levels).

Logic output circuitsComposition of testsFor static type outputs, minimum testing includes:b output dynamics (I or V)b output compliance (I or V)b influence of load (transition time, over/undershoots)b for datacom: protocol, frequency, gigue, etc.For relay type outputs, minimum testing includes:b breaking capacity (min.-max. I/V, load impedance)b bounce time.

MiscellaneousInitializationAim: to verify the efficiency of self-testing carried out by the device during start-up.

Downgraded operationAim: to verify the efficiency of self-testing carried out by the device while functioning.

Module interchangeabilityAim: to test maintenance capability.Comments: the tests include:b power source converterb core-connector.



Testing of output effectsin rated domains

AimThese tests verify the operation of the device in therated domain of input signal variations, output loads,power supply voltage, etc.One degree of freedom is variable for each test,the other values being kept at their reference values.

Analog input circuitsReference documents:standards: IEC 60255-6 , IEC 61131-2

Composition of tests:for each type of input (sensors, process, etc.), testing includes, in particular:b behaviour at limits (saturation, voltage limiter operation)b input currents/voltages when saturatedb passband / recovery timeb permissible overload and dynamic thermal limit for sensor inputs.

DC power supplyReference documents:standards: IEC 60255-22-xx, IEC 61131-2for determination of sensitivity limits.

Voltage amplitudeAim: to test the device’s ability to functionwith all acceptable power supply voltages.

Alternating componentAim: to test the device’s ability to functionwith an alternating component (rectifier-batterycharger) superimposed on its DC supply voltage.Severity: alternating component (= ripple batteryvoltage) with frequency >100 Hz and peak-to-peakamplitude = 0.12 UnomComments: the test is performed:b at the extreme limits of the power supply domain.

Fading cancellationAim: to check the device’s ability to maintain operationin spite of power supply micro-outages(source changeover or faulty device nearby).Severity: 10 voltage outages, at minimum 1 sec.intervals, lasting:75 ms for Vpower = Vnom30 ms for Vpower = VminComments: the voltage outages correspond:b first, to an opening in the power supply line(infinite impedance during disturbance),b then, to a shorting of the power supply line(zero impedance during disturbance).

Accidental voltage surgesAim: to test the device’s ability to maintain operationin the presence of transient surge voltage in the powersupply (handling shocks, reactive load switching).Severity: 10 surges, at minimum 1 sec. Intervals,lasting 10 ms, with a maximum slope of 100 V/ms,and maximum amplitude:+ 20 V for Un < 48 V,+ 40 V for Un > 48 V.

Logic input circuitsReference documents:standards: IEC 60255-6, IEC 61131-2

Composition of tests:testing includes, in particular:b static inputsv input dynamics (examination of saturation)v input currents/voltages (examination of saturation)b relay type inputsv maximum permissible voltagev input impedance (voltage limiters, R.L. diodes)v resolution (min. duration of a single-shot input signal)v maximum frequency.

Logic output circuitsReference documents:standards: IEC 60255-6, IEC 61131-2

Composition of tests:Testing includes, in particular:b static outputsv effectiveness of protective devicesv maximum length of datacom linkb relay type outputsb effectiveness of protective devices (damping circuits, overvoltage suppressors).

Ambient temperatureAim: to confirm the hypothesis of temperature rise of the device when being cooledby natural air convection in a confined area.Reference documents:standards: IEC 60068-2-2Comments: this test is complementary to the standardized test described in thesection on "dry heat".



Effects of the environmenton the equipment

AimThese tests check device sensitivity and resistanceto electromagnetic, mechanical, chemical, etc.interference.

Reference documents:standards: IEC 60255-22-xx for determinationof sensitivity limits.

Sensitivity to electromagneticinterferenceSensitivity to conducted interference

1MHz damped waveAim: to test that the device does not operate in anunwanted manner when subjected to high frequencytransients (switching of auxiliary relays or isolationswitches/circuit breakers).

Reference documents:standards: IEC 60255-22-1

Severity

Impulse waveAim: to test the device’s immunity when it is submitted to transients caused bylightning and switching (capacitor bank, short-circuit to earth, etc.).

Reference document:standard: IEC 61000-4-5

SeverityCircuits Test voltage (test impedance)

Common mode Differential mode

Power supply 2 kV (42 Ω) 1 kV (42 Ω)

Logic inputs 2 kV (42 Ω) 1 kV (42 Ω)

Analogic inputs 2 kV (42 Ω) 1 kV (42 Ω)

Logic outputs 2 kV (42 Ω) 1 kV (42 Ω)

Earth fault current inputTC + CSH30

2 kV (42 Ω) 1 kV (42 Ω)

Communication interface 2 kV (42 Ω)on shielding

N/A

Sensitivity to electrostatic dischargesAim: to test that the device does not operate in an unwanted manner when subjectedto electrostatic discharge (operator contact or nearby objets).


Severity:generator load voltage: 8 kV in air

6 kV on contact

Testing in a simulated MV environmentAim: to check that there is no nuisance tripping during MV switchgear operations.Composition of tests: device installed in a cubicle shunt-wired to a high voltagegenerator.

Severity:generator voltage: 30 kV / 50Hz.Number of operations: 30 closing operations.

Climatic and mechanical robustness testsForeword: Test sequenceb the same device undergoes all the testsb the sequential testing order complies with the recommendationsin the IEC 60068-1 standard (as testing order maximizes the significanceof the results, each test potentially reveals deterioration caused by previous tests).

ColdAim: to test the device's ability to be used at low temperatures.


Severity:Ad test, without forced air circulation:b device in operation,b temperature: 0 °C,b duration: 16 hours,b recovery: 1 hour, device energized.

Nota : the pocket terminal is not subjected to the tests.

Dry heatAim: to test the device's ability to be used at high temperatures.


Severity:Bd test, without forced air circulation:b device in operationb temperature: 55 °C.

Circuits Test voltage

Commonmode

Differentialmode

Power supply 2.5 kV 1 kV

Logic inputs 2.5 kV 1 kV

Analogic inputs 2.5 kV 1 kV

Logic outputs 2.5 kV 1 kV

Fast transient burstsAim: to test device immunity when subjected to rapid,repeated electrical transients (inductive load breaks,relay contact bounces).


SeverityCircuits Test voltage (coupling)

Commonmode

Differentialmode

Power supply 4 kV [direct] 4 kV [direct]

Logic inputs 4 kV [direct] 4 kV [direct]

Analogic inputs 4 kV [direct] 2 kV [direct]

Logic outputs 4 kV [direct] 4 kV [direct]

Pocket terminal socket 4 kV [capacitive]

Sensitivity to radiated interferenceAim: to test that the device does not operate in anunwanted manner when subjected to anelectromagnetic field of radiation (especiallytransmitters/receivers).

Reference documents:standards: IEC 60255-22-3, IEC 61000-4-3

Severity:intensity of field: 30V/m not modulated

10V/m amplitude-modulated.



Effects of the environmenton the equipment

Fast temperature variationsAim: to test the device's ability to function duringchanges in ambient temperature.

Reference document:standards: IEC 60068-2-14

Severity:Nb test, device in operation:b device in operationb low temperature: 0°Cb high temperature: 55°Cb speed of temperature variation: 5 ±1°C/mnb duration of exposure at each level: 2 hoursb number of cycles: 2b recovery: 1 hour, device energized.


Shocks / Behaviour to shocksAim: to test the device's ability to function in spiteof shocks which may occur during normal operation.


Severity:Class 1:b device in operationb peak acceleration: 5 gnb pulse duration: 11 msb number of pulses per axis: 3 in each direction.


Shock resistanceAim: to test the device's ability to withstand shockswhich may occur during transportation or handling.


Severity:Class 1:b peak acceleration: 15 gnb pulse duration: 11 msb number of pulses per axis: 3 in each direction.


BumpsAim: to check the device's ability to withstand bumpswhich may occur during transportation.


Severity:Class 1:b peak acceleration: 10 gnb pulse duration: 16 msb number of pulses per axis: 1000 in each direction.


Vibrations / Behaviour to vibrationsAim: to test the device's ability to function in spite of vibrations during normaloperation.


Severity:Class 1:b device in operationb frequency range: 10 to 150 Hzb acceleration: 0.5 gn or 0.035 mm (peak values)b number of cycles per axis: 1b sweep speed: 1 octave/mn ±10%.


Vibration resistanceAim: accelerated aging test to test the device's ability to withstand weak but longvibrations while in operation or during transportation.


Severity:Class 1:b frequency range: 10 to 150 Hzb acceleration: 1 gn (peak value)b number of cycles per axis: 20.


Damp heatAim: to test the device's ability to be stored under high relative humidity conditions.


Severity:Ca test (continuous test).b temperature: 40 ± 2°Cb relative humidity: 93% +2/-3%b duration: 56 daysb crecovery: 1 hour drying at 55°C, then 1 hour cooling at 20°C before final test.


Salt mist / Test for special use only / Corrosive atmosphereAim: to define the atmosphere to which the device may be exposed in operationand/or storage.

Reference documents:standards: IEC 60654-4.

Severity:b class 1: clean industrial air.

Enclosure protection degreeAim: to test the protection provided by the enclosure:b for people: against direct contact with energized parts.b or equipment: against solid foreign objects or water.

Reference documents:standards: IEC 60529

Severity:b front panel: IP51b other sides:v without cabling accessories: IP20v with cabling accessories: IP21.


Fire behaviour / Glow wire testAim: to evaluate the risk of fire and test extinction of the flames when the productis exposed to abnormal thermal conditions.Reference documents:standards: IEC 60695-2-1Severity:b temperature: 650°Cb applied duration: 30 ±1 s.




Effects of the equipmenton the environment

AimThese tests test the level of interference (electrical, electromagnetic, etc.) generatedby the device.

DC power supplyReference documents:standards: IEC 61131-2

Power consumptionAim: to check the conformity of the device to specifications.Severity: the test is performed at the rated voltages of the two operational domains,i.e. 48 V and 127 V.

Inrush currentAim: to check the conformity of the device to specifications.

Acceptance criteria:

(1) In = steady-state current

Radiofrequency interferenceConducted interferenceAim: to check the interference voltage introduced by the device at the energynetwork terminal posts.

Reference documents:standards: CISPR 22

Acceptance criteria:b maximum emission (virtually peak):b 79 dB (µV) from 0.15 to 0.5 MHzb 73 dB (µV) from 0.5 to 30 MHz.

Radiated interferenceAim: to test the electromagnetic field interference radiated by the device.

Reference documents:standards: CISPR 22

Acceptance criteria:maximum emission (virtually peak) at 10 m:b 40 dB (µV/m) from 30 to 230 MHzb 47 dB (µV/m) from 230 to 1000 MHz.

Time Inrush current maximum peak50 µs ≤ t < 1.5 ms 10 A1.5 ms ≤ t < 500 ms 10 A500 ms ≤ t 1.2* In (1)



Reference documents

Standards

Title Reference Status

Vibration, shock, bump and seismic tests on measuring relays and protectionequipment: vibration tests (sinusoidal).

IEC 60255-21-1 1988

Vibration, shock, bump and seismic tests on measuring relays and protectionequipment: shock and bump tests.

IEC 60255-21-2 1988

Electrical disturbance for measuring relays and protection equipment:1MHz burst disturbance tests.

IEC 60255-22-1 1988

Electrical disturbance for measuring relays and protectionequipment: electrostatic discharge tests.

IEC 60255-22-2 1989-10

Electrical disturbance for measuring relays and protectionequipment: radiated electromagnetic field disturbance tests.

IEC 60255-22-3 1989-10

Electrical disturbance for measuring relays and protectionequipment: 1 MHz damped oscillating wave tests.sensitivity to fast transient interference tests.

IEC 60255-22-4 1992

Electromagnetic compatibility (EMC) part 4-3: testing and measurement techniquesimmunity to electromagnetic fields radiated at radioelectric frequencies test

IEC 61000-4-3 1998

Electromagnetic compatibility (EMC)part 4: testing and measurement techniques impulse wave

IEC 61000-4-5 1995

Single input energising quantity measuring relays with dependent specified time IEC 60255-5 1977Electrical relays: insulation tests IEC 60255-6 1988

Degrees of protection provided by enclosures (IP code) IEC 60529 1989Programmable logic controllers: equipment characteristics IEC 61131-2 1992Environmental testing: general and guidance IEC 60068-1 1988

Environmental testing:test A: cold

IEC 60068-2-1 1990-04

Basic environmental testing procedures:test N: change of temperature

IEC 60068-2-14 1986

Basic environmental testing procedures:test B: dry heat.

IEC 60068-2-2 1974

Basic environmental testing procedures:test Ca: damp heat, steady state

IEC 60068-2-3 1969

Basic environmental testing procedures:test Kb: salt mist, cyclic (sodium chloride solution)

IEC 60068-2-52 1984

Limits and methods of measurement of radio interference:characteristics of information technology equipment

IEC CISPR 22 1993

Test methodsfire behaviour: glow wire test

IEC 60695-2-1 1994

Operating conditions for measurement and control equipmentin industrial processes: effects of corrosion and erosion

IEC 60654-4 1987



Testing Contents

General information 4/2Procedure 4/2Equipment 4/2

Inhibition of outputs and test parameterization 4/3Inhibition of outputs 4/3Test mode 4/3

Differential protection testing with simplifiedparameterization 4/4

Tripping value chart 4/5

Cabling testing by current injection 4/6Cabling of the injection box 4/6Even couplings 4/6Odd couplings 4/7

Restricted earth fault protection testing 4/8

Test sheet 4/10


Testing General information

ProcedureSet the parameters(use the setting sheets which are included in the appendix to record the values)b statusb control logicb protection.

Perform testingDifferent test methods are proposed:b differential protection testing with simplified parameterization.This parameterization may be used to check the protection characteristic usingtwo single-phase injection units. The outputs used for tripping and indication aredisabled, which makes it possible to carry out this test while the network is operatingnormally.

b cabling testing by current injection:correct cabling and parameterization of the differential protection may be checked byinjecting a known current in the protection and reading the phase currents,differential currents and restrained currents measured by the protectionIt is recommended that this test be performed at the time of commissioning.

b restricted earth fault protection test. It is recommanded that this test be performedfor each restricted earth fault used at the time of commissioning.

Equipmentb two 50 Hz (60 Hz) single-phase current generatorsb 2 ammetersb this documentb pocket terminal.


Testing Inhibition of outputsand test parameterization

Chart of output sattus in tripping inhibited mode

Test modeThe test mode is designed to simply current injection for the differentialprotection test.The test mode is obtained by using the KP6 parameter.The changeover to test mode automatically parameterizes the differential protection.b vector groups equal to 0b Un, Un' and Un" values such that Un.In = Un'.In' = Un".In".It disables switching of the tripping outputs. Upon the return to normal mode(KP9 = 0), the initial parameter settings are recovered and the outputs become activeagain.

E51

995 Depending on the settings of the KP6 and KP9 parameters, the protection is in one

of the following 4 operating modes:b normalb tripping inhibitedb protection testing and tripping inhibitedb protection testing and tripping active.

Inhibition of outputsIt is useful to be able to inhibit differential and restricted earth fault protection actions,in particular to run tests while the electrical distribution system is operating normally.Parameter KP9 is used for inhibition, which consists of disabling the switching of thetripping outputs.The indication outputs of the differential and restricted earth fault protections remainvalid, allowing protection operation to be checked.

normal

trippinginhibition

protectiontesting and trippingactive

protectiontesting and trippinginhibited

KP6

KP6 and KP9

KP9 KP9

KP6 and KP9

KP9 KP9

KP6

KP6 and KP9

KP6 = 0 KP9 = 0 normal mode outputs: all operativeIndicator offmessage: ------------

KP9 = 1 tripping inhibited outputs inoperative according to chart"test" indicator onmessage: INHIBIT.

output inoperatives indication outputs operative

Sepam D22 O1, O2, O12, O13 O14 (differential or restricted earth fault)Sepam D32 O1, O2, O12, O13, O21, O22 O14 (differential or restricted earth fault)

Changeover from normal mode to test modeKP6 0 → 1(whatever thevalue of KP9)

protection test modeand tripping inhibited

outputs inoperative according to chart"Test" indicator blinkingmessage: TEST COUPL.

Test mode:KP9 0 → 1 → 0orKP9 1 → 0(KP6 = 1)

protection test mode andtripping active

Outputs: all operative"Test" indicator blinkingmessage: TEST COUPL.

Return to normal normalKP6 1 → 0(KP9 = 0)

no inhibition Outputs: all operativeIndicator offmessage: ------------reset

KP6 1 → 0(KP9 = 1)

inhibition outputs inoperative according to chart"Test" indicator blinkingmessage: INHIBITreset


Testing Differential protection testingwith simplified parameterization

b Parameterization of the protection in Test mode(setting pocket terminal) KP6 = 1.The test indicator is on.

CautionThis operation should be carried out first sinceit inhibits protection tripping.

b Wiring in accordance with the diagram opposite.v for Sepam 2000 D22 connect the injection boxes tothe ECMD2 and ECMD3 boards.v for Sepam 2000 D32, carry out two tests, one withthe injection boxes connected to the ECMD2 andECMD3 boards and the other with them connected tothe ECMD2 and ECMD4 boards.

b Return to normal operation: carry out the operationsin the following order:1. disconnect the injection units2. normal operating mode (KP6 = 0).The test indicator is off.

Nota : the return to normal operating mode by KP6 = 0 clearsall messages and latching.

MT

106

24

DiagramThis advantage of this arrangement is that the differential current iinj1 and throughcurrent iinj2 are injected directly.For that purpose iinj1 and iinj2 must be in phase and injected as shown in the figureabove with iinj2 > iinj1.

b Notation :In: CT rated current for winding 1I’n: CT rated current for winding 2in: 1A or 5AI1, I2, I3: phase current for winding 1I’1, I’2, I’3: phase current for winding 2iinj1, iinj2: injected currentsId1, Id2, Id3: phase differential currents 1, 2, 3It1, It2, It3: phase through currents 1, 2, 3.

b Calculated currents by Sepam (and accessible via the TSM2001):I1 = (iinj2 - iinj1) x (In / in) Id1 = iinj1 x (In / in)I2 = I1 Id2 = Id1I3 = 0 Id3 = 0I’1 = iinj2 x (I’n / in) It1 = iinj2 x (In / in) (nota: iinj2 > iinj1)I’2 = I’1 It2 = It1I’3 = 0 It3 = 0

Example of tripping curve at Id / It = 20%The different curves:

curve A: iinj1 = 0.3 in

curve B: iinj1 = (Id / It) x iinj2with Id/It the setting of the protection

curve C: iinj1 = 0.744inj2 - 3.475 in(approximation between 6 in and 10 in at ± 5%).

MT

106

25

SEPAM 2000635241

123456

635241

123456

ECM D 2

ECM D 3 or 4

inj2i

inj2i

A

3A or 4A

3B or 4B

2A

2B

inj2i

inj1iA

inj1iinj2i -

tripping

curve B

curve C

no tripping

tests proposed:

curve A


Testing Tripping value chart

The following chart gives an indication, according to the through current injected andthe Id/It setting, of the differential currrent (xin) value as of which the protection trips.

Id (xin) Id/It (setting of the protection)It (xin) 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.50.0 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.3000.5 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.3001.0 0.300 0.300 0.300 0.300 0.350 0.400 0.450 0.5001.5 0.300 0.300 0.375 0.450 0.525 0.600 0.675 0.7502.0 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.0002.5 0.375 0.500 0.625 0.750 0.875 1.000 1.125 1.2503.0 0.450 0.600 0.750 0.900 1.050 1.200 1.350 1.5003.5 0.525 0.700 0.875 1.050 1.225 1.400 1.575 1.7504.0 0.600 0.800 1.000 1.200 1.400 1.600 1.800 2.0004.5 0.675 0.900 1.125 1.350 1.575 1.800 2.025 2.2505.0 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.5005.5 0.825 1.100 1.375 1.650 1.925 2.200 2.475 2.7506.0 1.032 1.200 1.500 1.800 2.100 2.400 2.700 3.0006.5 1.344 1.344 1.625 1.950 2.275 2.600 2.925 3.2507.0 1.656 1.656 1.750 2.100 2.450 2.800 3.150 3.5007.5 2.016 2.016 2.016 2.250 2.625 3.000 3.375 3.7508.0 2.376 2.376 2.376 2.400 2.800 3.200 3.600 4.0008.5 2.736 2.736 2.736 2.736 2.975 3.400 3.825 4.2509.0 3.144 3.144 3.144 3.144 3.150 3.600 4.050 4.5009.5 3.552 3.552 3.552 3.552 3.552 3.800 4.275 4.75010.0 4.008 4.008 4.008 4.008 4.008 4.008 4.500 5.00010.5 4.488 4.488 4.488 4.488 4.488 4.488 4.725 5.25011.0 4.992 4.992 4.992 4.992 4.992 4.992 4.992 5.50011.5 5.544 5.544 5.544 5.544 5.544 5.544 5.544 5.75012.0 6.120 6.120 6.120 6.120 6.120 6.120 6.120 6.12012.5 6.720 6.720 6.720 6.720 6.720 6.720 6.720 6.72013.0 7.320 7.320 7.320 7.320 7.320 7.320 7.320 7.32013.5 7.920 7.920 7.920 7.920 7.920 7.920 7.920 7.92014.0 8.496 8.496 8.496 8.496 8.496 8.496 8.496 8.49614.5 9.048 9.048 9.048 9.048 9.048 9.048 9.048 9.04815.0 9.576 9.576 9.576 9.576 9.576 9.576 9.576 9.57615.5 10.032 10.032 10.032 10.032 10.032 10.032 10.032 10.03216.0 10.488 10.488 10.488 10.488 10.488 10.488 10.488 10.48816.5 10.896 10.896 10.896 10.896 10.896 10.896 10.896 10.89617.0 11.280 11.280 11.280 11.280 11.280 11.280 11.280 11.28017.5 11.640 11.640 11.640 11.640 11.640 11.640 11.640 11.64018.0 12.000 12.000 12.000 12.000 12.000 12.000 12.000 12.00018.5 12.336 12.336 12.336 12.336 12.336 12.336 12.336 12.33619.0 12.648 12.648 12.648 12.648 12.648 12.648 12.648 12.64819.5 12.960 12.960 12.960 12.960 12.960 12.960 12.960 12.96020.0 13.248 13.248 13.248 13.248 13.248 13.248 13.248 13.24820.5 13.560 13.560 13.560 13.560 13.560 13.560 13.560 13.56021.0 13.848 13.848 13.848 13.848 13.848 13.848 13.848 13.84821.5 14.136 14.136 14.136 14.136 14.136 14.136 14.136 14.13622.0 14.424 14.424 14.424 14.424 14.424 14.424 14.424 14.42422.5 14.712 14.712 14.712 14.712 14.712 14.712 14.712 14.71223.0 14.976 14.976 14.976 14.976 14.976 14.976 14.976 14.97623.5 15.264 15.264 15.264 15.264 15.264 15.264 15.264 15.26424.0 15.552 15.552 15.552 15.552 15.552 15.552 15.552 15.552


Testing Cabling testing by currentinjection

Measurement values available on the pocket terminal accordingto the currents injected

in: CT secondary rated current; in = 1 A or 5 A.

Cabling of the injection boxb Inhibition of tripping outputs by KP9 = 1; the test indicator is on.

b Cabling of the injection boxv Sepam D22: connect the injection box to the ECMD2 and ECMD3 boards usingthe diagram that matches the time index set (index').v Sepam D32: carry out 2 testsConnect the injection box to the ECMD2 and ECMD3 boards using the diagram thatmatches the time index (index') set; carry out the first test.Connect the injection box to the ECMD2 and ECMD4 boards using the diagram thatmatches the time index (index") set: carry out the second test.

b Calculation of the injection coefficient k

(test between windings 1 and 2) (test between windings 1 and 3) (1)

In, In', In"(1) CT rated current, windings 1, 2 and 3 (1)

Un, Un', Un"(1) rated voltage, windings 1, 2 and 3 (1)

(1) Sepam 2000 D32 only

b Reading of measurements taken by Sepam 2000 (using the pocket terminal,Add.reading menu) and comparison with the theoretical values.Use the test sheet which is found at the end of this manual.

Even couplings

E5

1989

k = Un’ In’Un In k = Un" In"

Un In

SEPAM 2000635241

123456

635241

123456

ECM D 2

ECM D 3 or 4

I

0

A

4 8 6 10 2

635241

635241

635241

635241

635241

Add.reading - Idiff. and Itrav.

Id1 = abs(1-k).I.In/in It1 = max (1,k).I.In/inId2 = 0 It2 = 0Id3 = abs(1-k).I.In/in It3 = max (1,k).I.In/inAdd. reading - I or I' phase

I1 = I.In/in I1' = I.In’/in = 0 = I.In’/in = I.In’/in = 0 = I.In’/inI2 = 0 I2' = 0 = I.In’/in = I.In’/in = 0 = I.In’/in = I.In’/inI3 = I.In/in I3' = I.In’/in = I.In’/in = 0 = I.In’/in = I.In’/in = 0

0 4 8 6 10 2


Testing Cabling testing by currentinjection

Odd couplings

Measurement values available on the pocket terminal according tothe currents injected:

in: CT secondary rated current; in = 1 A or 5 A.

E51

988

SEPAM 2000635241

123456

635241

123456

ECM D2

ECM D3 or 4

I

5 9 7 11 3

635241

A

635241

635241

635241

635241

1

Special function - Idiff. and Itrav.

Id1 = . I .In/in It1 = max . I .In/in

Id2 = 0 It2 = 0

Id3 = . I .In/in It3 = max . I .In/in

Special function - I and I' phase

I1 = I.In/in I1’ = I.In’/in = 0 = 0 = I.In’/in = 0 = 0I2 = 0 I2’ = 0 = 0 = I.In’/in = 0 = 0 = I.In’/inI3 = I.In/in I3’ = 0 = I.In’/in = 0 = 0 = I.In’/in = 0

1 5 9 7 11 3

1 - k3 [ ]1, k

3

1 - k3 [ ]1, k

3


Testing Restricted earth faultprotection testing

b Parameterization of the protection for Test coupling (using the pocket terminal,KP6 = 1).The test indicator lights up.

Please noteThis operation should be carried out first since it inhibits tripping of the protection.

b Checking of the setting:The Iso set point is checked by simulating a fault between the neutral point CT anda phase CT, when the circuit breaker is open. In this case, only the neutral point CTdetects the fault. There is zero restraint current.

To perform the test, wire according to the diagram opposite.

Inject a current in the CSH 30 sensor associated with the neutral point currentmeasurement CT to check the value of the setting.

b Check the stability:The stability is checked by considering a phase-to-earth fault outside the zone to beprotected.This test is only possible if Ino = In for the winding to which the restricted earth faultprotection is connected.

To perform the test, wire according to the diagram opposite.

Inject a current into the CSH 30 sensor associated with the neutral point current CTand into one of the phase current inputs to simulate a fault outside the zone.Check the stability for a current of 2 In.

E61

718

5 A neutral point current CT: 1 turn1 A neutral point current CT: 5 turns

E61

719

5 A neutral point current CT: 1 turn1 A neutral point current CT: 5 turns

SEPAM 2000635241

123456

635241

123456

ECM D 2

ECM D 3

A

CSH 30

SEPAM 2000635241

123456

635241

123456

ECM D 2

ECM D 3

A

CSH 30


Testing Restricted earth faultprotection testing

b Checking of the slopeThe slope can be checked by simulating a phase-to-earth fault inside the zone to beprotected on a network with the circuit breaker closed. In this case, the fault isdetected by the neutral point CT and partially by the phase CT.To facilitate the test and calculations, set Ino to the same value as In.To perform the test, wire according to the diagram opposite.

To facilitate the test and calculations, set Ino to the same value as In.Inject a current through the CSH30 interposing ring CT and a phase current in theopposite direction.The restraint current is equal to I1, the differential current is equal to I1 + I neutral.When there is no I neutral, the slope is equal to 100%. Gradually inject Io until trippingoccurs. Record I neutral and I1 and calculate 100 x (I1 + I neutral)/I1 and compareto 105%.

b To return to normal operation, perform the operations in the following order:1. disconnect the injection box;2. restore normal operation mode;the test lamp is off; the messages and latching are reset to zero.

E6

1720

E61

721

SEPAM 2000635241

123456

635241

123456

ECM D 2

ECM D 3

CSH 30CSH 30

I1

A

A I neutral

3B

3A

Iso

IA

IA + I neutral

Io - I neutral

105 %100 %

I neutral

IAIo


Testing Test sheet

Project: ...............................................................................Switchboard: .......................................................................Panel: .............................................................................................................................................................................

Transformer differential protectionType of Sepam 2000

Serial number

Cabling testing by current injection

index’ = ...............................

index" = ...............................

In = ...............................

I’n = ...............................

I"n = ...............................

injection coefficient: (1)

k = ......................= ..........................

Un = .........................

Un’ = .........................

Un" = .........................

test between windings 1 and 2

test between windings 1 and 3

Current injected: I = ............................

Variable Formula (1) Value calculated Tolerance Value read

I1

I2

I3

..................................................

..................................................

..................................................

............................

............................

............................

±5 %

±5 %

±5 %

...................................................

...................................................

...................................................I1'

I2'

I3'

..................................................

..................................................

..................................................

............................

............................

............................

±5 %

±5 %

±5 %

...................................................

...................................................

...................................................I1''

I2''

I3''

..................................................

..................................................

..................................................

............................

............................

............................

±5 %

±5 %

±5 %

...................................................

...................................................

...................................................Id1

Id2

Id3

..................................................

..................................................

..................................................

............................

............................

............................

±10 %

±10 %

±10 %

...................................................

...................................................

...................................................It1

It2

It3

..................................................

..................................................

..................................................

............................

............................

............................

±10 %

±10 %

±10 %

...................................................

...................................................

...................................................(1) Copy the formulas which appear in the manuel

Differential protection testing with simplified parameterizationId / It = ........................... %

Procedure:b sed iinj2 to the value indicated in the chartbgradualy increase iinj1 until the protection tripsb read the value of iinj1b compare it to the theoretical value.

Test n° iinj2 Tripping current iinj1 iinj1 / iinj2 Tripping theorical value

a 0.5 in ....................................... A iinj1 = 0.3 in

b 2 in ....................................... A .......................................... iinj1 / iinj2 = Id / It

c 4 in ....................................... A .......................................... iinj1 / iinj2 = Id / It

in = 1 ou 5 AId/It : seuil à pourcentage, exprimé en %

Tests carried out on:

by: ..............................................................................................................................................................................................................

Signature Signature

Comments: ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

D

Schneider Electric Industries SAPostal adress:F - 38050 Grenoble cedex 9France

Tél : +33 (0)4 76 57 60 60

http://www.schneider-electric.com

As standards, specifications and designs change from time to time, please ask for confirmation given in this publication.

This document has beenprinted on ecological paper

Publishing: HeadLinesDesing: Schneider ElectricPrinting: Imprimerie des 2 ponts

01-2002ART.05505 PC

RE

D30

1042

EN

- 5

1246

527E

N/A

0 ©

200

2 S

chne

ider

Ele

ctric

- A

ll rig

ht r

eser

ved

Documents

Sepam 2000 D22 - D32 Merlin Gerinmt.schneider-electric.be/OP_MAIN/Sepam/PCRED301042UK.pdf · Get more with the world’s Power & Control specialist Transformer differential protection